…gic (#4uhyaha) Just request the last seen twt as well in the `Range` header and if it doesn't match the old one you've already seen, you know that this feed doesn't operate in append only mode, so tha…

So... We can _technically_ use HTTP `Range` requests for fetching Twtxt feeds to mitigate large feed sizes of clients/users that don't rotate their feeds. Problem is, this **requires** every client/user to write to their feed files as an "Append Only Log" in a newest at the bottom approach. Otherwise it doesn't work.